Energy Suspension Hyper-Flex Rear Upper Trailing Arm Bushing - Black - GM A-Body / B-Body / G-Body 1965-88 Z-Tech Sports This retrofit main body kit

This retrofit main body kit converts 04777 (650 CFM)

More timing can be run (without detonation) than with stock distributors and after market curve kits

but prevents reversion common to screen-type windage trays

Max Dyno Gains of 21 hp and 23 lb

Energy Suspension Hyper-Flex Rear Upper Trailing Arm Bushing - Black - GM A-Body / B-Body / G-Body 1965-88 Z-Tech Sports This retrofit main body kitFor both front and rear of suspensions on cars, trucks and SUVs. Made of Energy's Hyper Flex performance polyurethane for optimum performance and durability. Maintains proper alignment under extreme conditions on the street, track or off road. Improves vehicle handling, cornering and overall control. Full floating for smoother, efficient operation. Outlasts and outperforms rubber. Vehicle Applications: 1965 1971 Oldsmobile 442 1965 1981 Oldsmobile